The Bofecillos Mountains area of Trans-Pecos Texas contains a Tertiary volcanic vent and a varied sequence of lava flows, tuff, ash-flow tuff, and associated conglomerate, sandstone, and mudrock; after most of the volcanic activity had ceased, the area was block faulled and later dissected into a rugged high-standing terrain with striking exposu

At 10 pm (CDT) on Friday, July 31, 1970, a tropical squall struck the western tip of Cuba causing property damage and the loss of 5 lives. Twelve hours later at 10 am (CDT), Saturday, August 1, the tropical depression had moved 150 miles northwest and had intensified into Tropical Storm Celia.

This work was begun in 1964 and substantially completed in 1965; at that time conodont zones had been established in North America only for the Upper Devonian, by Clark and Becker (1960) for the Great Basin and Collinson, Scott, and Rexroad (1962) for the mid-continent.

Five main depositional systems of the Jackson Group in Texas are delineated through regional outcrop and subsurface investigation.

Texas is no longer a frontier. The expansion of cities, industries, superhighways, and reservoirs, and changing land uses are fast absorbing the open spaces that once were so abundant in Texas.